Wish I was so lucky!! I have added the hot fix but no change. I get to the Upload to FTP Host dialog and it says Validating Domain and when that message clears the beach-ball appears and spins! I have to Force Quit Muse?
Sometimes, if I leave it, it finally appears with a Network Connection error and suggests checking username etc.
I have now used YummyFTP and uploaded the site, with the same settings, with no problems!
Peter H